<html xmlns="http://www.w3.org/1999/xhtml" 
      xmlns:h="http://java.sun.com/jsf/html"
      xmlns:f="http://java.sun.com/jsf/core">
      
      <f:view contentType="text/html"/>
      <body> 
      <center>
      <h1><h:outputText value="#{ecdemoBean.str}"/></h1>
      <h:form>
      <h:commandButton value="Click Here" action="#{ecdemoBean.show}"/>
      </h:form>
      </center>
   </body>
      
      </html>
